Hi,
I'm setting up my home theater, bought a Denon AVR-S720W and while choosing the subwoofer I got a few options:
Dayton SUB-1000 - $119
Power output: 100 watts RMS
Frequency response: 30 - 140 Hz
https://www.parts-express.com/dayton-audio-sub-1000-10-100-watt-powered-subwoofer--300-628
BIC...